Exchanger

<pre name="code" class="java">package com.jerry.concurrency; import java.util.Random; import java.util.concurrent.ExecutorService; import java.util.concurrent.Exchanger; import java.util.concurrent.Executors; public class TestExchanger { public static void main(String[] args) { ExecutorService thread =Executors.newCachedThreadPool(); final Exchanger<String> exchanger = new Exchanger<String>();//存储进行交换的对象 for(int i=0;i<=1;i++){//启动交换数据的两个线程 thread.submit(new Runnable(){ @Override public void run() { try { String data1 = "《《《线程" + Thread.currentThread().getName() + "的数据》》》"; System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + data1 + "交给另外一个线程"); Thread.sleep((new Random().nextInt(20))); String data2 = (String) exchanger.exchange(data1); System.out.println("线程" + Thread.currentThread().getName() + "换回的数据为" + data2); } catch (InterruptedException e1) { e1.printStackTrace(); } } }); } thread.shutdown(); } } </pre>